27 questions linked to/from Do electrons have shape?
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### Why does an electron have left-handed and right-handed components? [duplicate]

An electron is assumed to be a point particle that does not have structure. Why does it have left-handed and right-handed components? Does this imply that the electron has structure or volume?
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### What is the smallest particle? What is the building block of an electron? [duplicate]

I'm curious. Why when I was 5 years old did I rip things apart in half... Always trying to get another half... is it endless? I took a leaf and ripped it in half, and kept on going... God?
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### Why does the electric dipole moment of the electron tell us about its sphericity? [duplicate]

There are a bunch of experiments that claim to show that the electron is highly spherical by measuring the electron electric dipole moment. See e.g.: http://physicsworld.com/cws/article/news/2013/nov/...
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### What does it mean for a particle to have volume? [duplicate]

As far as I understand, we do not know whether an electron is a point particle or not, but we have a very low upper bound for its potential volume. If it turns out that electrons do have volume, what ...
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### Electric dipole moment(EDM) underlying physics [duplicate]

I read in a physics today paper, The electron can have nonvanishing EDM only if nature violates symmetry under time reversal (T) and under the combined operations of charge conjugation (C), which ...
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### Does the electron have size? [duplicate]

Can we ascertain the size of the electron? If it really is zero radius, then it can't be matter because it doesn't occupy space? Definition of matter (Google): physical substance in general, as ...
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### If electron carries negative charge, why bother looking for it's electric dipole moment? [duplicate]

I got confused after reading about spherical electron, would there really be some type of unknown particles popping in and out of existence within the virtual particle cloud around the electron that ...
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### Does an electron occupy a definite volume? [duplicate]

The proton is about 1.6–1.7 fm in diameter. Quoted from Wikipedia. That is,The proton just occupies a definite volume or a definite space. But I can't find the radius of an electron in Wikipedia. ...
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### Shape of electron [duplicate]

Today, in the BBC Science section, a headline reads that the Imperial College of London has determined that the shape of the electron is completely spherical. In a physics book I'm reading now, the ...
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### How is the mass of an electron distributed? [duplicate]

Since the position of an electron is not determined, how is it’s mass distributed ? In other words, how does an electron curve space time ? .
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### What is the mass density distribution of an electron?

I am wondering if the mass density profile $\rho(\vec{r})$ has been characterized for atomic particles such as quarks and electrons. I am currently taking an intro class in quantum mechanics, and I ...
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### Where is the evidence that the electron is pointlike?

I'm writing a piece about the electron, and I'm having trouble finding evidence to back up the claim that the evidence is pointlike. People tend to say the observation of a single electron in a ...
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### If atoms never “physically” touch each other, then how does matter-antimatter annihilation happen?

It is known that matter and antimatter annihilate each other when they "touch" each other. And as far as I know, the concept of "touching" as our brain gets it is not true on the atomic level since ...